# Last edited on 2019-04-17 03:19:19 by stolfilocal

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# Creates a frame of an animation file with a specified clock value.
# Caller must define ${NAME}, ${TAG}, ${WIDTH}, ${HEIGHT}, ${NRAYS}, ${CLOCK}, ${SHOW}.
# The root source file will be ${NAME}.pov.
# The output image file will be ${NAME}-${TAG}-${CLOCK}.png.
# The ${SHOW} must be "YES" to display the image during and after tracing.
#
NAME := NAME.IS.UNDEFINED
ifneq "${NAME}" "NAME.IS.UNDEFINED"
TAG := TAG.IS.UNDEFINED
ifneq "${TAG}" "TAG.IS.UNDEFINED"
WIDTH := WIDTH.IS.UNDEFINED
ifneq "${WIDTH}" "WIDTH.IS.UNDEFINED"
HEIGHT := HEIGHT.IS.UNDEFINED
ifneq "${HEIGHT}" "HEIGHT.IS.UNDEFINED"
NRAYS := NRAYS.IS.UNDEFINED
ifneq "${NRAYS}" "NRAYS.IS.UNDEFINED"
CLOCK := CLOCK.IS.UNDEFINED
ifneq "${CLOCK}" "CLOCK.IS.UNDEFINED"
SHOW := SHOW.IS.UNDEFINED
ifneq "${SHOW}" "SHOW.IS.UNDEFINED"

POVFILE := ${NAME}.pov

OTHERINPUTS := ${filter-out ${NAME}-%, ${wildcard *.inc pic-*.png }}

# POV-Ray installation directories:
POVPUB := /usr
POVRAY := ${POVPUB}/bin/povray
POVINC := ${POVPUB}/share/povray-3.7/include/

POVTTF := tt-fonts
POVTOOLS := ../tools

ifeq "/${SHOW}" "/YES"
  POVSHOW := +D
else
  POVSHOW := -D
endif

IMVIEW = display -title "%f"

.PHONY:: \
  frame showframe \
  clean

FRAMEPREFIX := ${NAME}-${TAG}
FRAMENAME := ${FRAMEPREFIX}-${CLOCK}
FRAMEPNG := ${FRAMENAME}.png
FRAMEBORDER := 0

all: ${FRAMEPNG}

${FRAMEPNG}: ${POVFILE} ${OTHERINPUTS}
	@echo "OTHERINPUTS = ${OTHERINPUTS}"
	-/bin/rm -f ${FRAMEPNG}
	${POVRAY} +K${CLOCK} \
            +FN +Q9 +MB1 \
            +W${WIDTH} +H${HEIGHT} \
            +AM1 +A0.0 +R${NRAYS} \
            ${POVSHOW} \
            +L${POVINC} \
            +L${POVTTF} \
	    +I${POVFILE} \
	    +O${FRAMEPNG} \
          2>&1 | ${POVTOOLS}/reformat-povray-output.gawk && \
	if [[ -s ${FRAMEPNG} ]]; then \
          { if [[ "/${SHOW}" == "/YES" ]]; then ${IMVIEW} ${FRAMEPNG} ; fi } ; \
        else \
          exit 1 ; \
        fi

clean::
	-/bin/rm -f ${FRAMEPNG}

endif # ${SHOW}
endif # ${CLOCK}
endif # ${NRAYS}
endif # ${HEIGHT}
endif # ${WIDTH}
endif # ${TAG}
endif # ${NAME}
# End 
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